# 2024 World Aquatics Swimming Championships (25 m) – Women's 4 × 100 metre medley relay

The Women's 4 × 100 metre medley relay competition of the 2024 World Aquatics Swimming Championships (25 m) was held on 15 December 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | United States (USA) | 3:44.35 | Melbourne, Australia | 18 December 2022 |
| Competition record | United States (USA) | 3:44.35 | Melbourne, Australia | 18 December 2022 |
The following record was established during the competition:
| Date | Event | Nationality | Time | Record |
| 15 December | Final | United States (USA) | 3:40.41 | WR |

## Results
### Heats

The heats were started at 10:24.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 3 | 4 | United States | Katharine Berkoff (55.34) Emma Weber (1:05.30) Alex Shackell (55.81) Alex Walsh (52.11) | 3:48.56 | Q |
| 2 | 3 | 5 | China | Qian Xinan (56.69) Tang Qianting (1:03.11) Chen Luying (56.42) Liu Shuhan (52.88) | 3:49.10 | Q |
| 3 | 2 | 3 | Sweden | Hanna Rosvall (57.74) Olivia Klint Ipsa (1:04.80) Louise Hansson (55.19) Sara Junevik (52.06) | 3:49.79 | Q |
| 4 | 2 | 6 | Great Britain | Abbie Wood (57.62) Angharad Evans (1:03.80) Eva Okaro (57.10) Freya Anderson (51.68) | 3:50.20 | Q, NR |
| 5 | 3 | 7 | Italy | Sara Curtis (57.46) Benedetta Pilato (1:04.23) Elena Capretta (56.65) Sofia Morini (52.46) | 3:50.80 | Q, NR |
| 6 | 1 | 3 | Neutral Athletes B | Elizaveta Agapitova (57.77) Yuliya Efimova (1:04.65) Arina Surkova (56.86) Daria Trofimova (52.53) | 3:51.81 | Q |
| 7 | 2 | 7 | Hungary | Lora Komoróczy (57.30) Henrietta Fángli (1:04.65) Panna Ugrai (57.06) Petra Senánszky (52.91) | 3:51.92 | Q, NR |
| 8 | 3 | 3 | Japan | Aimi Nagaoka (58.57) Kotomi Kato (1:04.65) Mizuki Hirai (55.55) Yume Jinno (53.48) | 3:52.25 | Q |
| 9 | 3 | 6 | Netherlands | Kira Toussaint (57.33) Tessa Giele (1:05.82) Maaike de Waard (56.80) Milou van Wijk (53.07) | 3:53.02 | R |
| 10 | 2 | 4 | Australia | Iona Anderson (57.65) Tara Kinder (1:07.08) Lily Price (55.83) Milla Jansen (53.26) | 3:53.82 | R |
| 11 | 3 | 2 | Poland | Adela Piskorska (57.30) Dominika Sztandera (1:05.69) Paulina Peda (57.98) Kornelia Fiedkiewicz (53.30) | 3:54.27 | |
| 12 | 1 | 4 | New Zealand | Helena Gasson (57.04) NR Brearna Crawford (1:07.13) Hazel Ouwehand (59.27) Zoe Pedersen (53.58) | 3:57.02 | NR |
| 13 | 2 | 8 | Slovakia | Teresa Ivan (59.79) Andrea Podmaníková (1:06.31) Tamara Potocká (56.72) Lillian Slušná (54.36) | 3:57.18 | NR |
| 14 | 2 | 1 | South Africa | Milla Drakopoulos (59.32) Lara van Niekerk (1:06.13) Rebecca Meder (57.20) Jessica Thompson (55.03) | 3:57.68 | AF |
| 15 | 2 | 2 | South Korea | Kim Seung-won (59.28) Park Si-eun (1:06.21) Jeong So-eun (1:01.18) Hur Yeon-kyung (54.89) | 4:01.56 | |
| 16 | 3 | 1 | Hong Kong | Cindy Cheung (1:02.13) Man Wui Kiu (1:07.76) Yeung Hoi Ching (58.49) Li Sum Yiu (54.60) | 4:02.98 | |
| 17 | 1 | 5 | Thailand | Saovanee Boonamphai (1:03.24) Phiangkhwan Pawapotako (1:08.87) Jinjutha Pholjamjumrus (1:01.31) Jenjira Srisaard (55.35) | 4:08.77 | |
| | 2 | 5 | Canada | Kylie Masse (56.34) Alexanne Lepage (1:05.15) Ingrid Wilm (58.16) Penny Oleksiak | Disqualified | Disqualified |
| | 3 | 8 | Spain | Carmen Weiler Emma Carrasco Laura Cabanes María Daza | Did not start | Did not start |

### Final

The final was held at 18:54.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 4 | United States | Regan Smith (54.02) WR Lilly King (1:03.02) Gretchen Walsh (52.84) Kate Douglass (50.53) | 3:40.41 | WR |
| | 6 | Great Britain | Abbie Wood (57.44) Angharad Evans (1:03.18) Eva Okaro (56.11) Freya Anderson (51.11) | 3:47.84 | NR |
| | 5 | China | Qian Xinan (56.88) Tang Qianting (1:03.17) Chen Luying (56.25) Liu Shuhan (51.63) | 3:47.93 | |
| 4 | 3 | Sweden | Hanna Rosvall (57.79) Sophie Hansson (1:04.54) Louise Hansson (54.67) Sara Junevik (51.35) | 3:48.35 | |
| 5 | 7 | Neutral Athletes B | Elizaveta Agapitova (58.16) Evgeniia Chikunova (1:03.26) Arina Surkova (56.48) Daria Klepikova (51.45) | 3:49.35 | NR |
| 6 | 2 | Italy | Sara Curtis (57.41) Benedetta Pilato (1:04.30) Elena Capretta (57.01) Sofia Morini (51.64) | 3:50.36 | NR |
| 7 | 8 | Japan | Aimi Nagaoka (58.52) Kotomi Kato (1:04.29) Mizuki Hirai (55.44) Yume Jinno (52.88) | 3:51.13 | |
| 8 | 1 | Hungary | Lora Komoróczy (57.58) Henrietta Fángli (1:04.91) Panna Ugrai (56.75) Lilla Minna Ábrahám (52.41) | 3:51.65 | NR |